Cleared Traditional

WELL TYPE GAMMA COUNTER (K771612) - FDA 510(k) Clearance

Class I Radiology device.

K771612 · Actus, Inc. · Radiology device
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Apr 1978
Decision
230d
Days
Class 1
Risk

K771612 is an FDA 510(k) clearance for the WELL TYPE GAMMA COUNTER. Classified as Counter (beta, Gamma) For Clinical Use (product code JJJ), Class I - General Controls.

Submitted by Actus, Inc. (Mchenry, US). The FDA issued a Cleared decision on April 10, 1978 after a review of 230 days - an extended review cycle.

This device falls under the Radiology FDA review panel, regulated under 21 CFR 862.2320 - the FDA radiology and imaging software oversight framework. The Traditional 510(k) pathway establishes clearance through substantial equivalence to a legally marketed predicate device, without requiring clinical trial data.

Device pattern: Standard predicate-based submission. Standard predicate reliance. This clearance follows a standard predicate-based equivalence path within the Radiology review framework, consistent with the majority of Class II 510(k) submissions.

View all Actus, Inc. devices

Submission Details

510(k) Number K771612 FDA.gov
FDA Decision Cleared Substantially Equivalent - Traditional 510(k) (SESE)
Date Received August 23, 1977
Decision Date April 10, 1978
Days to Decision 230 days
Submission Type Traditional
Review Panel Radiology (RA)
Summary -
Third-party Review No - reviewed directly by FDA
Regulatory Context
Review time vs. panel average
123d slower than avg
Panel avg: 107d · This submission: 230d
Pathway characteristics
Predicate-based equivalence.

Device Classification

Product Code JJJ Counter (beta, Gamma) For Clinical Use
Device Class Class 1 - General Controls
CFR Regulation 21 CFR 862.2320
What this classification means

Class I devices are subject to general controls only and most are exempt from 510(k) premarket notification. They represent the lowest regulatory burden in the FDA device framework.

Regulatory Peers - JJJ Counter (beta, Gamma) For Clinical Use

All 13
Devices cleared under the same product code (JJJ) and FDA review panel - the closest regulatory comparables to K771612.
LIQUID SCINTILLATION SPECTROPHOTOMETER
K810345 · Beckman Instruments, Inc. · Feb 1981
PACE-4-AUTOMATIC RIA GAMMA-COUTER
K802578 · Philips Medical Systems (Cleveland), Inc. · Dec 1980
NUCLEAR SAMPLE READER
K790905 · Abbott Laboratories · Jun 1979
PRINTER
K772099 · Miles Laboratories, Inc. · Jan 1978
LIQ. SCINTILLATION SPECTROPHOTOMETEO
K771369 · Beckman Instruments, Inc. · Sep 1977
AUTO-LOGIC II SYSTEM
K771129 · Abbott Laboratories · Aug 1977